53 lines
2.2 KiB
HTML
53 lines
2.2 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"
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lang="en" dir="ltr">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title></title>
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<meta name="generator" content="Offline" />
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<meta name="version" content="Offline 0.1" />
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<link rel="stylesheet" media="all" type="text/css" href="../../../css/all.css" />
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<link rel="stylesheet" media="print" type="text/css" href="../../../css/print.css" />
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</head>
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<body>
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<div class="dokuwiki export">
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<h1 class="sectionedit1" id="high_availability">High availability</h1>
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<div class="level1">
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<p>
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LemonLDAP::NG is highly scalable, so easy to insert behind a load-balancer:
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</p>
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<ul>
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<li class="level1"><div class="li"> Portal does not store any data outside the session database, so you can have many portal servers using the same HTTP host name</div>
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</li>
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<li class="level1"><div class="li"> All handlers download the whole configuration, so many servers can serve the same virtual hosts</div>
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</li>
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</ul>
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<p>
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You can for example set up a fail-over cluster with <a href="http://www.linux-ha.org/wiki/Heartbeat" class="urlextern" title="http://www.linux-ha.org/wiki/Heartbeat" rel="nofollow">Heartbeat</a> and <a href="http://haproxy.1wt.eu/" class="urlextern" title="http://haproxy.1wt.eu/" rel="nofollow">HAproxy</a>, like this:
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</p>
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<p>
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<a href="/_detail/documentation/ha-apache.png?id=documentation%3A2.0%3Ahighavailability" class="media" title="documentation:ha-apache.png"><img src="../../../media/documentation/ha-apache.png" class="mediacenter" alt="" /></a>
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</p>
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<p>
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You just have to share configuration and sessions databases between those servers:
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</p>
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<p>
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<a href="/_detail/documentation/ha-sessions-configuration.png?id=documentation%3A2.0%3Ahighavailability" class="media" title="documentation:ha-sessions-configuration.png"><img src="../../../media/documentation/ha-sessions-configuration.png" class="mediacenter" alt="" /></a>
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</p>
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</div>
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